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-rw-r--r--Library/Formula/elixir.rb7
1 files changed, 6 insertions, 1 deletions
diff --git a/Library/Formula/elixir.rb b/Library/Formula/elixir.rb
index beb1ad8f8..dfdf19a8f 100644
--- a/Library/Formula/elixir.rb
+++ b/Library/Formula/elixir.rb
@@ -3,7 +3,12 @@ require 'formula'
class ErlangInstalled < Requirement
fatal true
- satisfy { which 'erl' }
+ satisfy {
+ which 'erl' and begin
+ `erl -noshell -eval 'io:fwrite("~s~n", [erlang:system_info(otp_release)]).' -s erlang halt | grep -q '^R1[6789]'`
+ $?.exitstatus == 0
+ end
+ }
def message; <<-EOS.undent
Erlang R16 is required to install.